package com.xzavier.yunlian_interview.service;

import com.xzavier.yunlian_interview.view.StudyDuration_RequestParams;
import com.xzavier.yunlian_interview.view.StudyHistory;

public interface StudyDurationService {
    public void recordStudyDuration(String userId, StudyDuration_RequestParams[] arr);

    public StudyHistory getStudyDuration(String userId);
}
